f(a + h) - f(a) a. Use the definition ma = lim to find the slope of the line tangent to the graph of fat P. h - 0 h b. Determine an equation of the tangent line at P. f(x) = x- 8, P(-5,17)2 f(a + h) - f(a) a. Use the definition man = lim to find the slope of the line tangent to the graph of f at P. h-0 h b. Determine an equation of the tangent line at P. f(x) = 13x + 72, P(3,9)5 a. For the function and point below, find f'(a). b. Determine an equation of the line tangent to the graph of fat (a,f(a)) for the given value of a. 3 f(x) = a= X 16